Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/30/2021   18:35:44   (   0.13, -75.21) (   0.47, -73.66)  176.24                80
 09/01/2021   06:57:11   (  -0.14, -75.20) (   0.71, -78.83)  414.39                80
 09/02/2021   06:35:34   (  -0.14, -75.20) (  -0.36, -74.25)  108.82                80
 09/03/2021   18:57:09   (   0.15, -75.21) (  -0.80, -79.46)  483.95                80
 09/04/2021   18:40:50   (   0.15, -75.21) (   0.20, -74.86)   39.83                80
 09/07/2021   06:43:20   (  -0.15, -75.23) (  -0.09, -75.45)   25.76                80
 09/08/2021   06:21:43   (  -0.15, -75.23) (  -1.15, -70.87)  498.38                80
 09/09/2021   18:43:18   (   0.15, -75.25) (  -0.01, -76.07)   93.11                80
 09/10/2021   18:27:00   (   0.15, -75.26) (   1.00, -71.48)  431.36                80
 09/12/2021   06:48:27   (  -0.16, -75.28) (   0.18, -76.65)  156.99                80
 09/13/2021   06:26:49   (  -0.16, -75.29) (  -0.89, -72.07)  367.29                80